21151300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6823}}^1$

素因数の和:6868

約数の個数: 36

約数和(自身を含む): 47385856

約数和(自身を除く): 26234556

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6823, 13646, 27292, 34115, 68230, 136460, 170575, 211513, 341150, 423026, 682300, 846052, 1057565, 2115130, 4230260, 5287825, 10575650, 21151300]

約数ペア:

[(1, 21151300), (2, 10575650), (4, 5287825), (5, 4230260), (10, 2115130), (20, 1057565), (25, 846052), (31, 682300), (50, 423026), (62, 341150), (100, 211513), (124, 170575), (155, 136460), (310, 68230), (620, 34115), (775, 27292), (1550, 13646), (3100, 6823)]